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80 lines
2.4 KiB
80 lines
2.4 KiB
4 months ago
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/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_LSHPROJECTION_H
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#define ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_LSHPROJECTION_H
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#include <vector>
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#include "nnapi/Types.h"
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namespace android {
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namespace nn {
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enum LSHProjectionType {
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LSHProjectionType_UNKNOWN = 0,
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LSHProjectionType_SPARSE_DEPRECATED = 1,
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LSHProjectionType_DENSE = 2,
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LSHProjectionType_SPARSE = 3,
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};
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struct RunTimeOperandInfo;
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struct Shape;
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class LSHProjection {
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public:
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LSHProjection(const Operation& operation, RunTimeOperandInfo* operands);
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static bool Prepare(const Operation& operation, RunTimeOperandInfo* operands,
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Shape* outputShape);
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template <typename T>
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bool Eval();
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static constexpr int kHashTensor = 0;
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static constexpr int kInputTensor = 1;
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static constexpr int kWeightTensor = 2; // Optional
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static constexpr int kTypeParam = 3;
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static constexpr int kOutputTensor = 0;
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private:
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LSHProjectionType type_;
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const RunTimeOperandInfo* hash_;
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const RunTimeOperandInfo* input_;
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const RunTimeOperandInfo* weight_;
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RunTimeOperandInfo* output_;
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};
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template <typename T>
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int runningSignBit(const RunTimeOperandInfo* input, const RunTimeOperandInfo* weight, T seed);
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template <typename T>
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void SparseLshProjection(LSHProjectionType type, const RunTimeOperandInfo* hash,
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const RunTimeOperandInfo* input, const RunTimeOperandInfo* weight,
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int32_t* outBuffer);
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template <typename T>
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void DenseLshProjection(const RunTimeOperandInfo* hash, const RunTimeOperandInfo* input,
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const RunTimeOperandInfo* weight, int32_t* outBuffer);
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} // namespace nn
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} // namespace android
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#endif // ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_LSHPROJECTION_H
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